High temperature oxidation of inconel 939 produced by additive manufacturing
Journal article, 2024

High temperature oxidation of additively manufactured (Laser-powder bed fusion) IN939 (AM IN939) was studied at 900°C in dry air for 168 hours. AM IN939 cut parallel/perpendicular to the building direction, including conventionally manufactured (CM) IN939 were exposed to assess the influence of AM microstructure and its inherent anisotropy on oxidation properties. Microstructural anisotropy had no significant impact on oxidation properties. AM and CM IN939 exhibited nearly identical mass gains, yet local spallation was observed in the former. Further investigation involved oxidation of heat-treated AM IN939, revealing improved adhesion, possibly due to transformation of fine dendritic/cellular structure into coarse equiaxed grains.

IN939

Cr O 2 3

High temperature oxidation

Additive manufacturing

Spallation

Laser-Powder Bed Fusion

Author

Alberto Visibile

Chalmers, Chemistry and Chemical Engineering, Energy and Material

Kerem Gündüz

Gebze Institute of Technology (GYTE)

Chalmers, Chemistry and Chemical Engineering, Energy and Material

Mohammad Sattari

Chalmers, Physics, Microstructure Physics

Irina Fedorova

Chalmers, Physics, Microstructure Physics

Division of Research and Development

Mats Halvarsson

Chalmers, Physics, Microstructure Physics

Jan Froitzheim

Chalmers, Chemistry and Chemical Engineering, Energy and Material

Corrosion Science

0010-938X (ISSN)

Vol. 233 112067

Subject Categories

Manufacturing, Surface and Joining Technology

DOI

10.1016/j.corsci.2024.112067

More information

Latest update

5/2/2024 1